| 摘要 |
PROBLEM TO BE SOLVED: To simply measure the mass of objects in containers such as boxes, in the case of an object mass measuring system for minute gravity rotating bodies. SOLUTION: Recessed parts 10a and 10b are provided in a casing 10, and both end parts of a rotary shaft 30 are supported by bearings 10a and 10b. The lower end of the shaft 30 is connected to a motor, four arms 24 to 27 are fixed on horizontal X and Y axes, and the containers 20 to 23 such as boxes are mounted on the ends thereof. The boxes 20 to 23 with plants, animals, or the like housed therein are rotated in outer space to perform experiments. Side plates 1a to 1d, acceleration sensors 2a to 2d, and distance sensors 3a to 3d are disposed in the boxes. The mass of the internal objects is found based on signals generated from the sensors 2 and 3 by the collision of the objects with the side plates.
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